Results
Bony union was detected on radiography (Figure 3 C, D) 6 months after
surgery, although a radiolucent area surrounding the implant remained.
The patient could walk without support. The passive range of motion of
the left ankle joint was 5°/20° in dorsiflexion/plantar flexion before
surgery and 5°/10° after surgery. The functional outcome of the ankle
joint was measured using the Japanese Society for Surgery of the Foot
(JSSF)-RA foot ankle scale17 and the RA activity was
measured using the DAS28 score. The patient’s JSSF-RA and DAS28 scores
improved from 37 and 3.07 before surgery to 72 and 2.22 after surgery,
respectively.